Service bulletin 19NA216
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10171898 |
| Published by NHTSA | 2020-03-02 |
| Manufacturer's number | 19NA216 |
| Manufacturer's date | 2020-01-08 |
| NHTSA component | POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE); EQUIPMENT |
NHTSA's summary
This technical bulletin provides the tech with a procedure to check the t-case for loose fasteners and to re-torque if the cause of the concern.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Equipment and accessories, Transmission and driveline, Transfer case
| CHEVROLET SILVERADO 2500 | 2020 (the catalog's model; the bulletin names a series or trim of it) |
|---|---|
| CHEVROLET SILVERADO 3500 | 2020 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 2500 | 2020 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 3500 | 2020 (the catalog's model; the bulletin names a series or trim of it) |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| PIP5825 | 2023-04-17. Service bulletin. This Preliminary information communicates A vehicle may come in with a internal transfer case concern. Internal fault , Dealers need to disassemble to the point of failure and then do a cost comparison to determan repair VS. replacement. |
|---|---|
| PIP5894 | 2023-01-30. Service bulletin. This Preliminary information communicates proper alignment of the transfer case actuator during repair or actuator replacement |
| PIP5810A | 2022-10-17. Service bulletin. This Preliminary information communicates that the tool for the HD transfer cases to install the input seal during a repair is incorrect and a new tool is in development. |
| 19NA136 | 2021-02-01. Service bulletin. This service bulletin provides a diagnostic procedure to aid in correcting a customer concern of a Howling, Whining/Whirring Noise, Shudder/Vibration and/or Grinding Noise While in 4HI, 4HI Auto and/or During Parking Lot Maneuvers in Auto Mode. |
| PIE0560A | 2020-06-01. Service bulletin. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to a Service 4WD message being visible on the driver information center (DIC). |